conceiting

/kənˈsiːtɪŋ/
verb
  1. Forming or holding an overly high opinion of oneself; being vain or proud.
    • He was conceiting himself on his recent promotion, ignoring the team's effort.
    • Stop conceiting yourself; nobody is impressed by your boasting.
    • She spent the evening conceiting about her new car, much to her friends' annoyance.
Antonyms
What does "conceiting" mean? | whatsthatwordmean | whatsthatwordmean